Cattle-guard



(No Model.)

J. T; HALL. GA'TTLE GUARD.

No. 512,509.V FIG- 1- Patented Jan. 9, 1894.

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UNITED STATES PATENT OFFICE.

JAMES T. I-IALIJ, OF CHICAGO, ILLINOIS.

CATT LE- GUARD.

I SPECIFICATION forming part of Letters PatentrNo. 512,509, dated January 9, 1894.

Application filed July 14, 1890.

To aZZ- whom, it may concern: I

Be it known that I, JAMES T. HALL, a citizen of theUnited States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain newand useful Improvements in Surface-Railway Cattle-Guards, of which the following is a specification, reference being had therein to the accompanying drawlngs.

This invention relates to new and useful improvements in railway surface cattle guards; and the invention consists in the peculiar construction] of a metallic surface guard whereby the cost of such cattle guards is greatly reduced, while at the same time the footing of stock is eectually destroyed all as more fully hereinafter described and claimed.

In the drawings which accompany this specification, Figure 1 is a perspective view zo of my improved cattle guard. Fig. 2 is alongitudinal section thereof on line in-Fig. l. Fig. 3 is a cross-section through one section of the guard. Fig. t is an enlarged perspective view of one corner of the guard.

My improved cattle guard is composed of three or more plates A, of sheet metal of suitable length and width to form a complete section of cattle guard, each plate being apertured by means of punches and dies or any 3o other suitable method, so as to producean upward displacement of the metal from each \aperture. The size and form of the aperture B ought to be large enough to prevent the feet of men or animals from being caught fast, 3 5 and preferably so as to avoid sharp corners on the raised portions C which would injure the foot were it brought in contact therewith. The latter form upwardly presenting edges to destroy the footing for animals, without 4o injuring the same and by arranging them in the longitudinal direction of the guard they are less liable to form an obstruction for trail'- ing objects from a train.

In order to destroy the footing more eectually,I avoid regularity by causing the raised portions to be alternate or otherwise in irregular order, or by using two or more dierent dies for producing different forms of raised portions in each plate, as shown.

To raise the guard from the ties on which it is supported so that a sounding diaphragm may be formed which will vibrate or produce Serial No. 358,719- (No model.)

a cracking noise when weight is placed thereform an important element of security to the cattle guad and also permit of fastening it 6o firmly to the ties by a few spikes driven on the edges of the plates into the ties. They also form an element of economy as they shorten the height of the raised portion required to reach the level of the track, and thereby diminish the thickness of plate otherwise required to make the raised portions stiff enough.

Long' experience in cattle guards has demonstrated to me the absolute necessity of having no direct obstructing points exposed, and therefore, I construct all the parts of my guard in a manner that will not permit any dragging appendage of a railway train, to be obstructed by any upturned part of my guard, but will in all cases permit a free passage of the hanging appendage without injury to the same or the cattle guard.

It is obvious that the longitudinal edges of the plates may be bent to any plane as the necessity for the incline exists only for the front and rear edges of the guard.

What I claim as my invention is- 1. A met-al cattle guard section consisting of a metal plate having raised portions adapted to destroy the footing and supported above the ties by depressed flanges around its outer edges, substantially as described.

2. A metallic cattle guard section consisting of a metallic plate having raised portions with 9o bluntupper ends projecting from its upper surface arranged with their sides parallel with the longitudinal edges of the plate and in lateral rows each projection being in a line with the center of the space between the adjacent row of teeth and depressed flanges formed upon the edges of the plate, substantially as described. f

3. Acattle guard section consisting of a mea tallic plate having a series of upwardly extending teeth with blunt upper edges struck up from the metal of the plate, substantially as described.

4. A cattle guard section consisting of a sin- IOO gle plate beset with longitudinal projecting edges cut from the metal thereof, substantially as described.

5. Acattle guard section consisting ofa base adapted to be supported above the ties and a series of upwardly projecting pointless finlike projections on the base arranged adjacent to each other, substantially as described.

6. In a cattle guard, a section composed of a metallic plate having portions thereof bent down to form supports, and a series of upwardly projecting flanges struck up from the metal of the plate, substantially as described.

7. A cattle guard section composed of a single metallic plate with depending edge anges, substantially as described.

S. A cattle guard section consisting of abase and a series of separated upwardly projecting straight plates thereon formed with pointless upper edges, substantially as described.

9. A cattle guard section consisting of a series of short vertical plates having pointless upper edges separated from each other and secured in place their edges being presented upwardly,substantially as described.

In testimony whereof Iaffix my signature, in presence of two Witnesses, this 12th day of June, 1890.

JAMES T. HALL.

Witnesses:

JAMES WHITTEMORE, E. LITTLEJOHN. 

